.main {
    max-width: 90%;
    margin: 0 auto;
    padding: 100px 0 70px  0;
}
img{
    width: 580px;
    height: 250px;
    margin: 0 auto;
    display: block;
}
.btn {
    width: 500px;
    margin: 0 auto;
    max-width: 100%;
}
.btn .goindex {
    margin-right: 7%;
}
.btn .lx {
    border: 1px solid #d8d8d8;
    background: #ffffff;
    color: #8c8c8c;
}
.btn a {
    float: left;
    text-decoration: none;
    width: 230px;
    border: 1px solid #5298ff;
    background: #5298ff;
    color: #FFF;
    display: block;
    height: 46px;
    line-height: 44px;
    text-align: center;
    font-size: 16px;
    border-radius: 3px;
    overflow: hidden;
}
